Proteomic approach  Technical Considerations 
SERological proteomic analysis (SERPA)   Allows identifying specific autoantibodies produced in response to tumor antigens 
Proteomic Phosphoprofiling   Employs the immunoaffinity precipitation strategy in association with mass spectrometry stable isotope labeling by amino acids in cell culture (SILAC) 
OxiCAT Thiol-mapping proteome  Identifies the redox-sensitive cysteine residues of proteins by using a combined mass spectrometry global approach with isotope-coded affinity tag (ICAT) technology in association with the thiol-trapping technique, after the modification of the accessible cysteine residues by the thiol-trapping reagent iodoacetamide 
Activity-based profiling (ABPP) platforms  ABPP are specific probes that link covalently to a given protein (enzyme) by electrophilic and photoreactive groups and are analyzed in association with gel-based and LC-MS methods
  Useful to metadegradomics studies. 
TMA-AQUA platform  This tissue microarray analysis  allows the  in situ large-scale identification of specific targets by fluorescent immunohistochemistry. 
Imaging mass-spectrometry (IMS)  Enables analyzing intact tissue samples without sample destruction. IMS allow visualizing the spatial location of proteins in a given sample based on the molecular mass of the molecule. This strategy includes a range of technologies, such as the secondary ion mass spectrometry (SIMS), MALDI imaging and desorption electrospray ionization (DESI). 
Aptamer-based  strategy  Aptamers selectively bind specific proteins with high affinity, presented as complex high-performance proteomic arrays 
Table 2: Emerging approaches for oncoproteomics.